3509453

Information

• Patent Grant
• 3509453

• References
• Source

• Patent Number

  3,509,453

• Date Filed

  Not available

• Date Issued

  Tuesday, April 28, 1970
  54 years ago

• CPC

  • G06E3/001 - Analogue devices in which mathematical operations are carried out with the aid of optical or electro-optical elements
  • G01R23/00 - Arrangements for measuring frequencies Arrangements for analysing frequency spectra
  • G01S13/587 - using optical means
  • G02F1/11 - based on acousto-optical elements

• US Classifications

  • 324 - Electricity: measuring and testing
  • 702 - Data processing: measuring, calibrating, or testing
  • 708 - Electrical computers: arithmetic processing and calculating